Rashba spin-orbit coupling probed by the weak antilocalization analysis in InAlAs/InGaAs/InAlAs quantum wells as a function of quantum well asymmetry

Takaaki Koga, Junsaku Nitta, Tatsushi Akazaki, Hideaki Takayanagi

研究成果: Article査読

422 被引用数 (Scopus)

抄録

The values of the Rashba spin-orbit coupling constant α for MOCVD-grown In0.52Al0.48As/In0.53Ga0.47As/- In0.52Al0.48As quantum wells were studied using weak antilocalization analysis as a function of the structural inversion asymmetry (SIA) of the quantum well (QW). A clear transition from positive to negative magnetoresistance near B=0 T was observed by changing the SIA of the QWs. Furthermore, a quantitative agreement was found between theoretical and experimental values of α as a function of both the SIA and/or the sheet carrier density of the QWs.

本文言語English
論文番号046801
ページ(範囲)046801/1-046801/4
ジャーナルPhysical Review Letters
89
4
DOI
出版ステータスPublished - 2002 7 22
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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